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Cited 15 time in webofscience Cited 15 time in scopus
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A high rate and long-cycle-life anode based on micrometer-sized Pb powder for sodium-ion batteries

Authors
Kim, ChanghyeonKim, HuihunSadan, Milan K.Jeon, MinyeongCho, Gyu-BongNam, Tae-HyunCho, Kwon-KooAhn, Jou-HyeonAhn, Hyo-Jun
Issue Date
15-Dec-2021
Publisher
Elsevier BV
Keywords
Long cycle life; Sodium-ion batteries; High rate; Pb anode; Microstructure; Scanning electron microscopy
Citation
Journal of Alloys and Compounds, v.886
Indexed
SCIE
SCOPUS
Journal Title
Journal of Alloys and Compounds
Volume
886
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/2857
DOI
10.1016/j.jallcom.2021.161240
ISSN
0925-8388
1873-4669
Abstract
Pb powder was investigated as an active material as anode for sodium-ion batteries. Precisely, a Pb anode comprising micrometer-sized Pb powder modified with multi-walled carbon nanotubes was fabricated. The anode showed an excellent rate capability, as well as reversible capacities of 370 mAh g-1 at 12.8 C (6208 mA g-1). In addition, the Pb anode exhibited a stable cycle life during 1000 cycles at 10 C with a high reversible capacity of 423 mAh g-1. Using electrochemical tests, scanning electron microscopy, and energydispersive X-ray spectroscopy, we revealed the origin of this excellent performance: the micrometer-sized Pb powder undergoes self-healing during cycling, resulting in fiber-like nanometer-sized Pb particles that reinforce the anode structure and provide fast electron transport pathways. (c) 2021 Elsevier B.V. All rights reserved.
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대학원 (나노신소재융합공학과)
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